- 61 - 100 DAYS AFTER MARCH 1, 1954 (LOGARITHMIC) 20 — ! 190 : 300 220 T Ft RADIOACTIVITY (LOGARITHMIC) 3 eo Oo 4 a = lw . 2 > F 2 te oO SlOk oO — qt . a 10 r & 2 } 0 i L 200 J L 400 DAYS AFTER MARCH i tL 600 4 |, 1954 (SEMI-LOG) ra 800 Pigure 15. Radioactive decay of bissueof gastric mill of crab, Grapsus gus, collected Marcn 206, 1954 at Kabelle, Erseted POER as semi-log and log-log curves, UNIVERSIY: UNIV. Gio. RA